Memorial Day is a day of remembrance for troops who have paid the ultimate sacrifice in defense of the United States.
On this day, Americans may be posting tributes on social media or attending events to honor the fallen. For a group of Recon Marines however, their way of honoring fallen brothers is with an intense, grueling challenge over nearly 30 miles.
"I'll run for him until I retire," says Master Gunnery Sgt. Christopher May of his comrade Staff Sgt. Caleb Medley, in a new video produced by the Marine Corps. Medley died in Feb. 2013 in a parachuting accident while training in California, according to The Marine Times.